🇧🇪EU Tax Calendar

Belgium Tax Calendar 2026

Every Service Public Fédéral Finances (SPF Finances) tax deadline explained in plain English — VAT, corporate tax, personal income tax, social security, and more. Covers key filing and payment dates required by the EU VAT Directive and national tax laws.

Next Belgium deadline

Sep 20, 2026 · in 11 days

VAT Return — August 2026 Due

Monthly VAT return for August 2026 due.

Add these dates to your calendar (.ics)
Dutch, French, GermanEuro (EUR)January 1 – December 31
Jan '26Feb '26Mar '26Apr '26May '26Jun '26Jul '26Aug '26Sep '26Oct '26Nov '26Dec '26

January2026

Jan20

VAT Return — December 2025 Due

Monthly VAT return for December 2025 due for businesses on monthly filing.

VAT 601VAT
Jan31

Social Security — Q4 2025 Due

Quarterly social security contributions payment for Q4 2025.

Social Security

February2026

Feb20

VAT Return — January 2026 Due

Monthly VAT return for January 2026 due.

VAT 601VAT

March2026

Mar20

VAT Return — February 2026 Due

Monthly VAT return for February 2026 due.

VAT 601VAT

April2026

Apr10

Personal Income Tax Return — Filing Deadline

Deadline for filing personal income tax return for the previous year (via Tax-on-Web). Paper returns due earlier.

Tax-on-WebPersonal Income Tax
Apr20

VAT Return — March 2026 Due

Monthly VAT return for March 2026 due.

VAT 601VAT

May2026

May20

VAT Return — April 2026 Due

Monthly VAT return for April 2026 due.

VAT 601VAT

June2026

Jun20

VAT Return — May 2026 Due

Monthly VAT return for May 2026 due.

VAT 601VAT

July2026

Jul20

VAT Return — June 2026 Due

Monthly VAT return for June 2026 due.

VAT 601VAT
Jul31

Social Security — Q2 2026 Due

Quarterly social security contributions payment for Q2 2026.

Social Security

August2026

Aug20

VAT Return — July 2026 Due

Monthly VAT return for July 2026 due.

VAT 601VAT

September2026

Current
Sep20

VAT Return — August 2026 Due

Monthly VAT return for August 2026 due.

VAT 601VAT
Sep30

Corporate Income Tax Return — Filing Deadline

Deadline for filing corporate income tax return for calendar-year companies.

Corporate Tax ReturnCorporate Tax

October2026

Oct20

VAT Return — September 2026 Due

Monthly VAT return for September 2026 due.

VAT 601VAT

November2026

Nov20

VAT Return — October 2026 Due

Monthly VAT return for October 2026 due.

VAT 601VAT

December2026

Dec20

VAT Return — November 2026 Due

Monthly VAT return for November 2026 due.

VAT 601VAT

Key Tax Categories

Browse the main tax categories for Belgium. Each category includes key forms and filing requirements.

VATVAT Return
CITCorporate Income Tax
PITPersonal Income Tax
SSSocial Security
WHTWithholding Tax
CTCapital Taxes

Frequently Asked Questions

How often is VAT filed in Belgium?
This calendar shows a monthly VAT filing — 12 of them across the 2026 calendar. Each one falls on the 20th of the month. Filing frequency depends on the turnover band and the scheme a business is registered under, so a smaller business may report less often than the monthly cycle listed here. Confirm your own frequency with Service Public Fédéral Finances (SPF Finances).
When is the corporate income tax return due in Belgium?
Sep 30, 2026 — Corporate Income Tax Return — Filing Deadline. Belgium's tax year in this calendar runs January 1 to December 31, so a company on a non-calendar financial year will have different dates. Service Public Fédéral Finances (SPF Finances) publishes the authoritative schedule.
When is the personal income tax return due in Belgium?
Apr 10, 2026 (Personal Income Tax Return — Filing Deadline) and Sep 30, 2026 (Corporate Income Tax Return — Filing Deadline). Extensions and agent-filed deadlines can differ; the dates above are the ones shown on this calendar.
How often are payroll and social security contributions paid in Belgium?
The calendar lists 2 social security deadlines on the 31st for the 2026 period — see the months listed below. Employer obligations depend on headcount and payroll size.
What does this Belgium tax calendar cover?
16 filing and payment deadlines for 2026, grouped by month: vat, social security, corporate tax and personal income tax. Each entry names the form where one applies and flags public holidays that fall near a deadline. The authority behind these dates is Service Public Fédéral Finances (SPF Finances).
Is this calendar official Service Public Fédéral Finances (SPF Finances) guidance?
No. It is a plain-English summary built to help you plan, and it is not tax advice. Dates can change, and your own obligations depend on your registration, turnover and scheme. Always confirm against Service Public Fédéral Finances (SPF Finances) before you rely on a date, and speak to a qualified adviser about your own situation.
Do EU-wide VAT rules change these Belgium dates?
The EU VAT Directive sets a common framework, but each member state keeps its own filing calendar, thresholds and rates — which is why Belgium has its own page here rather than a shared EU one. If you sell across borders, the One-Stop Shop lets you declare VAT centrally instead of registering in each country.

What Belgium files, and how often

16 deadlines in the 2026 calendar, by tax type.

  • VATMonthly · 12 dates · always the 20th
  • Social SecuritySeveral times a year · 2 dates · always the 31st
  • Corporate TaxOnce a year · 1 date
  • Personal Income TaxOnce a year · 1 date

Counted from the dates listed on this page. Your own filing frequency depends on turnover, registration and scheme — confirm it with Service Public Fédéral Finances (SPF Finances).

Terms used on this page

Plain-English definitions, in case a word on a deadline is doing more work than it looks like.

Paperwork these dates tend to involve

Free tools that work for Belgium filings.

Invoice generator

Build an invoice with the tax lines filled in.

Receipt generator

Issue a receipt once a payment clears.

Quote generator

Quote a job before the work starts.

Pro forma invoice

For cross-border sales before VAT is due.

Need help with Belgium tax forms?

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This tax calendar is provided as a reference guide. Deadlines may change due to legislative changes or Service Public Fédéral Finances (SPF Finances) announcements. Always verify with the {authority} website or a qualified tax professional. Service Public Fédéral Finances (SPF Finances) website.

Before you file or pay

How to verify a Belgium tax deadline

1. Match the obligation. Check the tax type, period, registration and filing method. A VAT, payroll or income-tax date may not apply to every taxpayer.
2. Check the live notice. Public holidays, agent arrangements, extensions and account-specific instructions can change the operational due date.
3. Keep proof. Save the submission receipt and payment confirmation. Filing and paying can be separate actions with separate cut-off times.

Why this matters: missed dates can lead to late filing charges, interest, loss of a relief or an avoidable compliance review. This page is a planning aid, not a legal determination. It was last content-reviewed on 2026-08-14; verify the live rule with Service Public Fédéral Finances (SPF Finances) before acting.

Check the official Service Public Fédéral Finances (SPF Finances) guidance

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